About

RISC-V support in the various toolchains is still a work in progress and can require bringing together source patches and non-default branches from multiple upstream projects. This creates a barrier for developers wishing to participate in expanding the RISC-V software ecosystem. Specifically, GCC won't have an official release with RISC-V autovectorization until gcc-14 (Spring 2024).

Imagination already produce packages for Windows, macOS and several Linux distributions which include bundled binaries of recent GCC and LLVM, packaged together with a small sysroot, support for a few CPUs (modelled and real hardware) and a VS Code IDE.

A single Catapult SDK package currently includes:

LLVM, version 16.0
GCC (13.1). We'd like to use the riscv/gcc-13-with-riscv-opts backport once stable (e.g. LTO had issues when we last looked)
C libraries including Musl, picolib and glibc
binutils
A software CPU model of some Imagination CPUs
Support (via OpenOCD and gdb) for debugging on a number of RISC-V platforms including HiFive1, VisionFive
Documentation and example applications, including FreeRTOS
A Visual Studio Code IDE that integrates all these features

This effort was to explore feasibility of providing binary toolchain releases.

Status

Development	COMPLETED
Development Timeline	NA
Upstreaming	COMPLETED	This is now available to all at our public GitHub site. Please note that these are binaries. Upstreaming of source code to the open source projects packaged in these binaries (e.g. LLVM) is continuous and ongoing.
Upstream Version
Contacts	Simon Harvey
Dependencies	None	psABI vector ABI spec

Updates

03 Aug 2023

Publicly available binaries now released without registration requirement

22 Jun 2023

Project reported as priority for 2H23

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